CN101779066A - Gear shift controller for vehicle transmission - Google Patents
Gear shift controller for vehicle transmission Download PDFInfo
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- CN101779066A CN101779066A CN200880103117.5A CN200880103117A CN101779066A CN 101779066 A CN101779066 A CN 101779066A CN 200880103117 A CN200880103117 A CN 200880103117A CN 101779066 A CN101779066 A CN 101779066A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/21—Providing engine brake control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
- F16H2061/0234—Adapting the ratios to special vehicle conditions
- F16H2061/0237—Selecting ratios for providing engine braking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/14—Inputs being a function of torque or torque demand
- F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
- F16H59/54—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the brakes, e.g. parking brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/68—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
- F16H61/682—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings with interruption of drive
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
A gear shift controller for a vehicle transmission of a vehicle mounted with an engine and a transmission and capable of automatic transmission control by a shift map so as to shift the gear adequately for the vehicle traveling state and to ensure the braking force of the engine brake as intended by the driver while the vehicle speed is decreasing. The gear shift controller having a shift map for determining the gear according to the vehicle speed and the amount of accelerator pedal depression is provided with mode judging means for judging whether the mode period is an acceleration mode period or a deceleration mode period on the basis of the operation states of the accelerator pedal and the brake pedal. During the deceleration mode period after the driver depresses the brake pedal, shift-up is inhibited (S9), and the gear shift range of a shift-down map is corrected so as to vary the gear shift range in the vehicle speed increase direction (S2, S3) to perform shift-down early. With this, during the deceleration mode period, a braking force of the engine brake acts on the vehicle adequately, and the frequency of depressions of the brake pedal by the driver can be reduced.
Description
Technical field
The present invention relates to automatically control the gear change control device of speed change level in the vehicle that is equipped with speed changer, according to vehicle running state with a plurality of speed change levels.
Background technique
In nearest vehicle, the automation of various devices makes progress, about power transmitting deice, also alleviates for the facilitation of the driving of vehicle and driver's fatigue and has developed various automatic power transmission apparatus for vehicle.The automatic transmission that torque-converters and planetary gears are combined is representative in the power transmitting deice, and its power transmitting deice as so-called keep off a car automatically (AT car) is popularized widely.Except automatic transmission, also there is the same parallel-axes gears mechanism formula speed changer of use and so-called manually keep off a car (MT car), it is automatically switched the power transmitting deice of speed change level according to the travelling state of vehicle with operated clutch combination automatically, by electric control device.The speed change gear that uses parallel-axes gears mechanism formula speed changer automatically to carry out speed change is called AMT sometimes, below, this speed change gear is called " the parallel-axes gears mechanism formula speed changer of automatic shift control ".
Have transmission loss in the torque-converters of automatic transmission, in addition, planetary gears and control gear thereof are complicated and expensive.The parallel-axes gears mechanism formula speed changer of automatic shift control is the structure that combines with automatic operated clutch, be not accompanied by the transmission loss that clamps of torque-converters, so compare aspect the fuel economy of vehicle better with automatic transmission, the structure of speed changer structure and control are also than the simple and reliable property of automatic transmission height.Thereby, in the truck of attention fuel economy etc., in most cases use the parallel-axes gears mechanism formula speed changer that carries out the automatic shift control of automatic variable speed operation by driver greatly at load capacity.
About the power transmitting deice of the vehicle of the speed changer that is equipped with the switching of automatically carrying out the speed change level, the association of integral body of the control gear of its overview and each equipment is described by Fig. 6.
In vehicle shown in Figure 6, be equipped with motor 1, speed changer 2 as power transmitting deice, between disposes clutch (multi-disc wet clutch) 3.This routine motor 1 is the diesel engine that possesses fuel-injection pump, has according to the control fuel-injection pumps such as the amount of entering into of the accelerator pedal 11 of driver's operation, the engine controlling unit (ECU) 12 of change fuel feed.In addition, the multiple-speed gear-box of the parallel-axes gears mechanism formula that this routine speed changer 2 is automatic shift control possesses the driver 22 that is subjected to engine controlling unit (ECU) 12 controls and switches the speed change level.The output shaft of speed changer 2 finally is attached on the axletree 4, on axletree 4, is provided with the vehicle speed sensor 5 that detects the speed of a motor vehicle according to its rotating speed.The clutch 3 that is configured in the place ahead of speed changer 2 has the clutch control device (CCU) 31 that automatically clutch is disconnected or connects when the switching of speed change level.
In addition, the power transmitting deice of Fig. 6 is the structure that clamps hydraulic couplers (fluid coupling) 6 between motor 1 and clutch 3.Though hydraulic couplers 6 possesses the torque enlarging function unlike torque-converters,, can realize utilizing the starting of the smooth-going vehicle of the pump 61 of hydraulic couplers and the slip between the turbine 62 by clamping this hydraulic couplers 6.After starting, when vehicle has reached fixing speed about 10km/h, become pump 61 and turbine 62 by lock-up clutch 63 one link, motor 1 directly is combined in the state on the clutch 3.
The speed change level determination means of use gearshift figure is not limited to be used in the parallel-axes gears mechanism formula speed changer of automatic shift control as shown in Figure 6, also can adopt in automatic transmission.For example, in Japanese kokai publication sho 63-167162 communique, disclose the gear change control device of controlling parallel-axes gears mechanism formula speed changer by gearshift figure, disclose the gear change control device of controlling automatic transmission by gearshift figure in this external TOHKEMY 2005-308096 communique.
Patent documentation 1: Japanese kokai publication sho 63-167162 communique
Patent documentation 2: TOHKEMY 2005-308096 communique
In vehicle, be equipped with brake pedal with accelerator pedal, the driver mainly operates the speed that these pedals are regulated vehicle.When the driver wants vehicle deceleration, pin to be left (accelerator opening 0%) and makes motor become unloaded state from accelerator pedal, act on the braking force of so-called engine braking this moment on vehicle, and the speed of a motor vehicle reduces.When the deceleration of following when engine braking was inadequate, the driver entered into brake pedal, and the speed of a motor vehicle is further reduced.It is, little during the braking-force ratio slow speed turbine stage of the engine braking of level at a high speed when the deceleration effect that engine braking brings derives from the reverse direction actuation motor from the resistance of wheel.Thereby, be that the deceleration of the vehicle that engine braking is followed is slower under the state of level at a high speed at the speed changer of vehicle, the driver enters into brake pedal repeatedly and makes vehicle deceleration.
In order to improve the braking effect of engine braking, can consider when the speed of a motor vehicle is big from level at a high speed switch to slow speed turbine stage, the speed change point that is about to the gearshift figure that the downshift Fig. 7 uses is set in the position that the speed of a motor vehicle increases.But, for example in the time will moving, should approach from the speed change dotted line of 2 step velocitys from the speed change dotted line of 3 step velocitys to 2 step velocity downshifts to 3 step velocity upshifts from the direction that 3 step velocitys increase to the speed of a motor vehicle as the double dot dash line of figure to the speed change dotted line of 2 step velocity downshifts.Therefore, if corresponding to the changed condition on the road surface of travelling etc. and the switching of the speed change level between 2 step velocitys and 3 step velocitys then will take place repeatedly in the slightly little change of the such speed of a motor vehicle of A point among the generation figure and B point.In order to prevent this situation, between the speed change point of the speed change point of downshift and upshift, need certain hysteresis (hysteresis), can not make both too approaching.
In addition, the driving force that effect has vehicle weight to bring on the vehicle in descent run, vehicle also quickens, speed change level upshift even for deceleration pin left from accelerator pedal sometimes.For example,, the vehicle during 2 step velocitys are travelled under the state that the C of Fig. 7 is ordered becomes the state that D is ordered if being accelerated in descending, then surpass the speed change point of upshift and become 3 step velocitys, but the braking effect of engine braking is low at this moment, vehicle is run counter to driver's wish and is further quickened as a result.The driver has to repeatedly brake pedal be entered into make vehicle deceleration.
Summary of the invention
The purpose of this invention is to provide a kind of transmission control unit, this transmission control unit uses gearshift figure automatically to switch the speed change level of speed changer, in this transmission control unit, execution is suitable for the speed change of vehicle running state, and guarantees the braking force of the engine braking that the driver wants when vehicle deceleration.
In view of above-mentioned purpose, the present invention is being switched in the transmission control unit of speed change level by gearshift figure, differentiate during the aero mode and during the deceleration mode according to the operating conditions of operated accelerator pedal of driver and brake pedal, during deceleration mode, forbid the speed change point of upshift and change downshift.Promptly, in the present invention relates to transmission control unit, the speed change level that the speed changer on vehicle is carried in this transmission control unit control, it is characterized in that, in above-mentioned vehicle, acceleration detection device of entering into that detects accelerator pedal and the braking detector of entering into that detects brake pedal are installed; Above-mentioned transmission control unit possesses the speed change level determination means that determines the speed change level with the speed of a motor vehicle of above-mentioned vehicle and the accelerator opening that carries the motor in above-mentioned vehicle accordingly; The upshift that above-mentioned speed change level determination means has the speed change level zone of decision when the upshift of level speed change is at a high speed schemed with gearshift with the downshift in gearshift figure and the decision speed change level zone when the downshift of slow speed turbine stage speed change; And, above-mentioned speed change level control gear possesses pattern discrimination mechanism, this pattern discrimination mechanism is according to the input signal from above-mentioned acceleration detection device and above-mentioned braking detector, differentiate from accelerator pedal begun by entering into to brake pedal by the aero mode till entering into during and from brake pedal begun by entering into to accelerator pedal by the deceleration mode till entering into during; During above-mentioned deceleration mode, forbid speed change to the high speed level, and the adjustment in direction that will increase to the speed of a motor vehicle by the speed change level zone that above-mentioned downshift determines with gearshift figure.
In technological scheme 2, above-mentioned transmission control unit possesses the slope detection mechanism of the gradient on the road surface of detecting above-mentioned vehicle driving, during descending grade more than the road surface is specified value, carry out with above-mentioned deceleration mode during identical control.
The invention effect
Transmission control unit of the present invention, possess accelerator opening with the speed of a motor vehicle of vehicle and motor and determine the speed change level determination means of speed change level accordingly, promptly determine the speed change level determination means of speed change level by gearshift figure that the speed change level during vehicle driving decides according to the speed of a motor vehicle and accelerator opening basically.And, transmission control unit of the present invention possess differentiate during the aero mode accordingly with the operation of accelerator pedal and brake pedal and deceleration mode during pattern discrimination mechanism, adjust speed change level according to driver's vehicle operating by the decision of speed change level determination means.Accelerator pedal begun after entering into to brake pedal by the aero mode till entering into during, carry out so-called common speed change by gearshift figure decision, at this moment, owing between the speed change point of the speed change point of downshift and upshift, have certain hysteresis, thus can not take place speed change carry out repeatedly (swing: hunting).On the other hand, begun by entering into from brake pedal to accelerator pedal by the deceleration mode till entering into during, be under an embargo to the speed change of level at a high speed, and the adjustment in direction that will increase to the speed of a motor vehicle with the speed change level zone of gearshift figure decision by downshift.
Owing to can be judged as the driver wishes vehicle when entering into brake pedal deceleration, so needed the braking effect of guaranteeing that fully engine braking brings before entering at accelerator pedal.In transmission control unit of the present invention, owing to during this deceleration mode, forbid, do not produce upshift, run counter to driver's wish and situation that the braking effect of engine braking is reduced so do not have to the speed change of level at a high speed.In addition and since by downshift with the speed change level zone of gearshift figure decision by the adjustment in direction that increases to the speed of a motor vehicle, so when car speed is bigger, be performed, during deceleration mode, act on the engine braking that braking force has increased earlier to the speed change of slow speed turbine stage.If the speed change point of downshift is moved to the direction that the speed of a motor vehicle increases, then approach the speed change point of upshift, but upshift is under an embargo in during deceleration mode, thereby the swing of speed change can not take place.
Like this, in transmission control unit of the present invention, since in during the deceleration mode as the driver wants vehicle deceleration, no longer need the repeatable operation brake pedal, so can avoid frequently using the overheated undesirable condition such as grade of caused brake gear.
When vehicle during at descent run, vehicle quickens because of vehicle weight, but as long as driver one leaves pin and the operational brake pedal from accelerator pedal, the speed change just carry out deceleration mode in transmission control unit of the present invention during.Thereby, even the speed of a motor vehicle increases and surpassed the speed change point of upshift in descending, also forbid to the speed change of level at a high speed, and when the speed of a motor vehicle is big, carry out downshift earlier.As a result, the braking effect of engine braking can be guaranteed, the fault of decay (fade) phenomenon that the frequent operation of the brake pedal in the descending brings etc., vehicle braked apparatus can be prevented.
The invention of technological scheme 2 constitutes, and detects the gradient on the road surface of vehicle driving by slope detection mechanism, during descending grade more than the road surface is specified value, carry out with deceleration mode during identical control.Thus, in descending, the brake pedal even the driver does not enter into is also automatically carried out above-mentioned speed change.
Description of drawings
Fig. 1 has been to use the skeleton diagram of the power transmission apparatus for vehicle of transmission control unit of the present invention.
Fig. 2 is the figure of the pattern discrimination method of expression transmission control unit of the present invention.
Fig. 3 is the flow chart of the action of expression transmission control unit of the present invention.
Fig. 4 is the figure of the figure of the downshift during the expression deceleration mode.
Fig. 5 is the variation of the flow chart of Fig. 1.
Fig. 6 be expression in the vehicle power transmitting deice and the figure of control gear.
Fig. 7 is the figure of the general gearshift figure of expression transmission control unit.
Label declaration
1 motor
11 accelerator pedals
13 accelerator switch
2 speed changers
21 transmission control units
3 clutches
31 clutch control devices
5 speed change sensors
7 brake pedals
71 brake switch
S1～S11 (each step of control flow of S01～S03)
Embodiment
Below, the embodiment to transmission control unit of the present invention describes based on accompanying drawing.The embodiment of Fig. 1 is applied to example in the parallel-axes gears mechanism formula speed changer of automatic shift control with the present invention, the basic structure of the power transmitting deice of vehicle and the action of each equipment and device in the past shown in Figure 6 do not change (in Fig. 1, for giving identical label with Fig. 6 corresponding components etc.).Promptly, in transmission control unit 21 of the present invention, input is from the signal of the signal of the vehicle speed sensor 5 of vehicle and the accelerator opening of motor (amount of entering into of driver's accelerator pedal 11), by decision corresponding with the speed of a motor vehicle and accelerator opening determine the speed change level with the same gearshift figure of Fig. 7.If from the switching signal of transmission control unit 21 output variable speed levels, then corresponding therewith, the speed change level of driver 22 change speed changers 2.
In pattern discrimination mechanism, as shown in Figure 2, after accelerator pedal 11 is entered into, will arrive brake pedal 7 and during till the moment Ta that enters into, differentiate for during the aero mode.Brake pedal 7 one is entered into then to be differentiated for during the deceleration mode, though when brake pedal 7 is not entered into and as long as accelerator pedal 11 do not entered into and just continued during the deceleration mode.After moment Tb accelerator pedal 11 is entered into, transfer to during the aero mode once more.
Transmission control unit of the present invention is in order to ensure the braking effect of the engine braking that the driver expected, forbids upshift and downshift ahead of time in during deceleration mode, and for its structure and action, the flow chart by Fig. 3 describes.
In Fig. 3, if the flow process of control speed change level begins, then in step S1, carry out reading in from the signal of accelerator switch and brake switch, in step S2, carrying out current vehicles states based on these signals is during the aero mode or the differentiation during the deceleration mode.Step S1 and step S2 constitute pattern discrimination of the present invention mechanism.
In step S2, differentiate be aero mode for vehicle-state during, be that accelerator pedal is entered into the rear brake pedal when also not entered into, former state advances to step S4, carries out by detected vehicle velocity V of vehicle speed sensor and reading in by the detected accelerator opening A of accelerator sensor.Then, in step S5, use the gearshift figure be kept in the control gear, determine speed change level accordingly as target with vehicle velocity V of being read in and accelerator opening A.The gearshift figure of Shi Yonging is the identical figure of gearshift figure shown in Figure 7 with in the past transmission control unit in during aero mode in the present invention, and is the figure that the speed change point of the speed change point of upshift and downshift is written into with having certain hysteresis.Different in gearshift figure that upshift is used and gearshift figure that downshift is used as the zone of the speed change level of target, so in step S5, determine the target shift speed level Nd ' that target shift speed level Nd that upshift is used and downshift are used respectively.Step S4 and step S5 constitute speed change level determination means of the present invention.
On the other hand, in step S2, differentiate for vehicle-state for during during the aero mode not, be the brake pedal deceleration mode of not entered into by the postaccelerator pedal of entering into during the time, advance to step S3, carry out the correction that usefulness decides the upshift of target shift speed level in advance.This correction do not change gearshift figure that upshift uses and the speed change point of gearshift figure that downshift is used as shown in Figure 4 to the increase side shifting of the speed of a motor vehicle (speed of a motor vehicle that deducts reduction value from the speed of a motor vehicle of reality decides the target shift speed level of downshift).As the mechanism that carries out such correction, the also gearshift figure of the such special use of set-up dirgram 4 and switch and use it in addition.If with the increase side shifting of speed change point to the speed of a motor vehicle, then regional with the speed change level of gearshift figure decision by the adjustment in direction that increases to the speed of a motor vehicle by downshift, during deceleration mode, in step S5, determine the target shift speed level Nd ' that downshift is used with gearshift figure by revised downshift.
In step S6, the gear stage of reading in the reality in the vehicle driving is current speed change level Nr, in step S7 and step S8, and will be by target shift speed level Nd and the Nd ' and current speed change level Nr comparison of speed change level determination means decision.
In step S7, judge whether the target shift speed level Nd that is used by the upshift of vehicle velocity V and accelerator opening A decision is bigger than current speed change level Nr.Under the situation that is judged as "Yes" of step S7, advance to step S9, during carrying out the vehicle-state in step S2, differentiate and being aero mode or the judgement during the deceleration mode.If during the aero mode, then advance to step S10, the instruction of transmission control unit output upshift is and if during the state of vehicle was deceleration mode, then not output order and process ends were forbidden to the upshift of level at a high speed.
When step S7 be judged as "No" the time, judge in step S8 whether the target shift speed level Nd ' that downshift uses littler than Nr, when Nd ' advanced to step S11 than Nr hour, the instruction of transmission control unit output downshift.At this moment, if during vehicle is deceleration mode, then since target shift speed level Nd ' determine by revised gearshift figure, so will be than Zao time instructions downshift in the speed of a motor vehicle deceleration of the moment at vehicle bigger than time during being in aero mode.Under the situation that is judged as "No" of step S8, because current speed change level is in lifting and all unwanted state of downshift, so output variable speed does not instruct and process ends.
Like this, in transmission control unit of the present invention, the accelerator pedal that carries out with the driver and the operation of brake pedal are differentiated during the aero mode and during the deceleration mode (step S1, step S2) accordingly, begun by entering into from accelerator pedal to brake pedal by the aero mode till entering into during, carry out so-called common speed change according to gearshift figure decision.On the other hand, begun by entering into from brake pedal to accelerator pedal by the deceleration mode till entering into during, forbid speed change (step S9) to the high speed level, and the adjustment in direction (step S3) that will increase to the speed of a motor vehicle by the speed change level zone that downshift determines with gearshift figure.
Trample break and during the deceleration mode with vehicle deceleration the driver, be under an embargo, reduce the braking effect of engine braking so can not run counter to driver's wish to the speed change of level at a high speed.In addition, owing to scheme the speed change level zone of decision by the adjustment in direction that increases to the speed of a motor vehicle, so when car speed is bigger, carry out with gearshift to the speed change of slow speed turbine stage by downshift.Thereby, in transmission control unit of the present invention, during deceleration mode, as driver's wish, guarantee the braking effect of engine braking, no longer need the repeatable operation brake pedal, so can prevent from frequently to use the overheated etc. of caused brake gear.
When vehicle during at descent run, because vehicle weight increases speed, so the special braking force of wishing to guarantee engine braking.Flow chart shown in Figure 5 be in descending, carry out with deceleration mode during the control flow of identical control.
The flow process of Fig. 5 be between step S1 and the step S2 of the expression flow chart that places Fig. 3, according to the flow process of the order of the gradient setting pattern on road surface.In step S01, obtain the gradient θ on the road surface of vehicle driving by computing etc., then, in step S02, judge the road surface whether be more than the specified value descending grade, be whether gradient θ is specified value-θ
0Below.If the gradient on the road surface above descending grade that is specified value, then with the operating conditions of accelerator pedal and brake pedal irrespectively, during in step S03, setting vehicle-state and being deceleration mode.Thus, in step S2, differentiate for during the deceleration mode, carry out with deceleration mode during identical control.When the gradient on road surface is not descending grade more than the specified value,, similarly carry out the differentiation of pattern with above-mentioned method of discrimination according to the operating conditions of accelerator pedal that in step S1, reads in and brake pedal.
If add the flow process of Fig. 5, then when the gradient on road surface is descending grade more than the specified value,, also automatically transfer to the speed change during the deceleration mode even the driver does not enter into brake pedal, can access the braking effect of sufficient engine braking.In addition, as everyone knows, the gradient on road surface can be on vehicle the vehicle speed sensor of the installation and measuring speed of a motor vehicle and installation and measuring acceleration acceleration transducer, the acceleration that obtains by the detected speed of a motor vehicle differential of vehicle speed sensor by contrast and calculate by the detected acceleration of acceleration transducer.
Industrial applicibility
Be described in detail as above, the present invention is being switched in the derailleur control device of speed change level by gearshift figure, differentiate during the aero mode and during the deceleration mode according to the operating conditions of the accelerator pedal of driver operation and brake pedal, during deceleration mode, forbid the speed change point of upshift and change gearshift, the brake force of engine braking is acted on fully. Thus, derailleur control device of the present invention, can both adopt no matter be the parallel-axes gears mechanism type speed changer of automatic transmission or automatic shift control certainly so long as the control device of use gearshift figure is just passable. In addition, detect in the above-described embodiments entering into of brake pedal, but the action oil pressure that also can detect brake master cylinder etc. is differentiated operating conditions of brake pedal etc., obviously can carry out various changes to above-described embodiment.
Claims (2)
1. transmission control unit, the speed change level that the speed changer in vehicle is carried in this transmission control unit control is characterized in that,
Acceleration detection device of entering into that detects accelerator pedal and the braking detector of entering into that detects brake pedal are installed in above-mentioned vehicle;
Above-mentioned transmission control unit possesses the speed change level determination means that determines the speed change level with the speed of a motor vehicle of above-mentioned vehicle and the accelerator opening that carries the motor in above-mentioned vehicle accordingly;
The upshift that above-mentioned speed change level determination means has the speed change level zone of decision when the upshift of level speed change is at a high speed schemed with gearshift with the downshift in gearshift figure and the decision speed change level zone when the downshift of slow speed turbine stage speed change; And,
Above-mentioned speed change level control gear possesses pattern discrimination mechanism, this pattern discrimination mechanism is according to the input signal from above-mentioned acceleration detection device and above-mentioned braking detector, differentiate from accelerator pedal begun by entering into to brake pedal by the aero mode till entering into during and from brake pedal begun by entering into to accelerator pedal by the deceleration mode till entering into during;
During above-mentioned deceleration mode, forbid speed change to the high speed level, and the adjustment in direction that will increase to the speed of a motor vehicle by the speed change level zone that above-mentioned downshift determines with gearshift figure.
2. transmission control unit as claimed in claim 1 is characterized in that,
Above-mentioned transmission control unit possesses the slope detection mechanism of the gradient on the road surface of detecting above-mentioned vehicle driving, during descending grade more than the road surface is specified value, carry out with above-mentioned deceleration mode during identical control.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007212521A JP2009047216A (en) | 2007-08-17 | 2007-08-17 | Speed change controller of vehicular transmission |
| JP2007-212521 | 2007-08-17 | ||
| PCT/JP2008/064586 WO2009025233A1 (en) | 2007-08-17 | 2008-08-14 | Gear shift controller for vehicle transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101779066A true CN101779066A (en) | 2010-07-14 |
Family
ID=40378138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880103117.5A Pending CN101779066A (en) | 2007-08-17 | 2008-08-14 | Gear shift controller for vehicle transmission |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20100145582A1 (en) |
| EP (1) | EP2180212A4 (en) |
| JP (1) | JP2009047216A (en) |
| CN (1) | CN101779066A (en) |
| AU (1) | AU2008289995A1 (en) |
| WO (1) | WO2009025233A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922545A (en) * | 2010-08-20 | 2010-12-22 | 上海汽车变速器有限公司 | Self-adaption gear shifting device for double-clutch automatic gearbox and realizing method thereof |
| CN102537311A (en) * | 2010-12-24 | 2012-07-04 | 富士重工业株式会社 | Vehicle driving-force control device |
| CN103423432B (en) * | 2012-05-15 | 2017-04-12 | 宝马股份公司 | Method for downshifting |
| CN109154340A (en) * | 2016-03-29 | 2019-01-04 | 本田技研工业株式会社 | The driving-force control apparatus of Straddle-type vehicle |
| CN109488760A (en) * | 2017-09-11 | 2019-03-19 | 长城汽车股份有限公司 | Double clutch speed-changing systems and its control strategy |
| CN111512126A (en) * | 2017-12-26 | 2020-08-07 | 五十铃自动车株式会社 | Vehicle weight estimation device and vehicle weight estimation method |
| CN112413108A (en) * | 2020-10-19 | 2021-02-26 | 东风汽车集团有限公司 | Gear shifting control method, device and system based on automatic gearbox and storage medium |
| CN113167375A (en) * | 2018-12-14 | 2021-07-23 | 加特可株式会社 | Vehicle control device and vehicle control method |
| CN113464640A (en) * | 2020-03-31 | 2021-10-01 | 本田技研工业株式会社 | Control device for automatic transmission for vehicle |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5690693B2 (en) * | 2011-09-21 | 2015-03-25 | 本田技研工業株式会社 | Shift control device |
| JP5987570B2 (en) * | 2012-09-06 | 2016-09-07 | スズキ株式会社 | Shift control device for automatic transmission |
| WO2020117798A1 (en) | 2018-12-06 | 2020-06-11 | Cummins Inc. | Powertrain controls for an electric motor and an automated manual transmission |
| CN113513583B (en) * | 2021-05-28 | 2022-08-19 | 蜂巢传动科技河北有限公司 | Control method and device for delaying gear-up after vehicle fuel door is released and automatic transmission |
| CN114811031B (en) * | 2022-04-25 | 2024-06-04 | 中国第一汽车股份有限公司 | Control method for improving acceleration power response of vehicle |
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| JPS487137B1 (en) * | 1968-10-30 | 1973-03-03 | ||
| JPS5943658B2 (en) * | 1977-05-09 | 1984-10-23 | アイシン精機株式会社 | Shift control device for automatic transmission |
| KR900000592B1 (en) * | 1985-02-16 | 1990-02-01 | 미쓰비시지도오샤고오교오 가부시기가이샤 | Shift control apparatus for automatic transmission system |
| JPS63167162A (en) * | 1986-12-27 | 1988-07-11 | Isuzu Motors Ltd | Control device for electronic control automatic transmission |
| JPH0650261Y2 (en) * | 1987-06-26 | 1994-12-21 | トヨタ自動車株式会社 | Automatic transmission control device |
| JPH01261547A (en) * | 1988-04-11 | 1989-10-18 | Nissan Motor Co Ltd | Speed change controller for automatic transmission |
| JPH09317872A (en) * | 1996-05-28 | 1997-12-12 | Aqueous Res:Kk | Continuously variable transmission |
| JP2005308096A (en) | 2004-04-21 | 2005-11-04 | Toyota Motor Corp | Control device for transmission |
| US7601095B2 (en) * | 2005-07-20 | 2009-10-13 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Vehicle |
-
2007
- 2007-08-17 JP JP2007212521A patent/JP2009047216A/en active Pending
-
2008
- 2008-08-14 AU AU2008289995A patent/AU2008289995A1/en not_active Abandoned
- 2008-08-14 US US12/733,161 patent/US20100145582A1/en not_active Abandoned
- 2008-08-14 EP EP08792467A patent/EP2180212A4/en not_active Withdrawn
- 2008-08-14 CN CN200880103117.5A patent/CN101779066A/en active Pending
- 2008-08-14 WO PCT/JP2008/064586 patent/WO2009025233A1/en active Application Filing
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922545B (en) * | 2010-08-20 | 2013-07-24 | 上海汽车变速器有限公司 | Self-adaption gear shifting device for double-clutch automatic gearbox and realizing method thereof |
| CN101922545A (en) * | 2010-08-20 | 2010-12-22 | 上海汽车变速器有限公司 | Self-adaption gear shifting device for double-clutch automatic gearbox and realizing method thereof |
| CN102537311A (en) * | 2010-12-24 | 2012-07-04 | 富士重工业株式会社 | Vehicle driving-force control device |
| CN102537311B (en) * | 2010-12-24 | 2015-01-14 | 富士重工业株式会社 | Vehicle driving-force control device |
| CN103423432B (en) * | 2012-05-15 | 2017-04-12 | 宝马股份公司 | Method for downshifting |
| US10569756B2 (en) | 2016-03-29 | 2020-02-25 | Honda Motor Co., Ltd. | Driving force control device for saddled vehicle |
| CN109154340A (en) * | 2016-03-29 | 2019-01-04 | 本田技研工业株式会社 | The driving-force control apparatus of Straddle-type vehicle |
| CN109488760A (en) * | 2017-09-11 | 2019-03-19 | 长城汽车股份有限公司 | Double clutch speed-changing systems and its control strategy |
| CN109488760B (en) * | 2017-09-11 | 2020-09-04 | 长城汽车股份有限公司 | Control strategy for dual clutch transmission system |
| CN111512126A (en) * | 2017-12-26 | 2020-08-07 | 五十铃自动车株式会社 | Vehicle weight estimation device and vehicle weight estimation method |
| CN113167375A (en) * | 2018-12-14 | 2021-07-23 | 加特可株式会社 | Vehicle control device and vehicle control method |
| CN113167375B (en) * | 2018-12-14 | 2022-04-05 | 加特可株式会社 | Vehicle control device and vehicle control method |
| CN113464640A (en) * | 2020-03-31 | 2021-10-01 | 本田技研工业株式会社 | Control device for automatic transmission for vehicle |
| CN112413108A (en) * | 2020-10-19 | 2021-02-26 | 东风汽车集团有限公司 | Gear shifting control method, device and system based on automatic gearbox and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2180212A4 (en) | 2010-09-29 |
| US20100145582A1 (en) | 2010-06-10 |
| EP2180212A1 (en) | 2010-04-28 |
| AU2008289995A1 (en) | 2009-02-26 |
| WO2009025233A1 (en) | 2009-02-26 |
| JP2009047216A (en) | 2009-03-05 |
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Application publication date: 20100714 |